Google is transitioning third-party smart home account linking to be handled fully and independently within the Google Home app. Updates to your integration may be needed before September 30, 2026. For more information, see the Account linking migration guide.
Callback registered with the App via App.onReachableDevices to
discover additional devices connected to a proxy or hub.
When a device that is discovered by the IdentifyHandler is a proxy
which enables indirect access to other devices (identified by the
isProxy flag in the
IdentifyResponse), the local home platform sends a
REACHABLE_DEVICES intent to discover the additional devices visible
to the proxy.
To learn more about how the platform verifies reachable devices,
see the developer guide.
const devicesHandler = (request: IntentFlow.ReachableDevicesRequest):
IntentFlow.ReachableDevicesResponse => {
// Reference to the local proxy deviceconst proxyDevice = request.inputs[0].payload.device.proxyDevice;
// Query local proxy device for additional visible ids// ...const reachableDevices = [
// Each verificationId must match one of the otherDeviceIds// in the SYNC response
{ verificationId: "local-device-id-1" },
{ verificationId: "local-device-id-2" },
];
// Return a responseconst response: IntentFlow.ReachableDevicesResponse = {
intent: Intents.REACHABLE_DEVICES,
requestId: request.requestId,
payload: {
devices: reachableDevices,
},
};
return response;
};
Callback registered with the App via App.onReachableDevices to discover additional devices connected to a proxy or hub.
When a device that is discovered by the IdentifyHandler is a proxy which enables indirect access to other devices (identified by the isProxy flag in the IdentifyResponse), the local home platform sends a
REACHABLE_DEVICESintent to discover the additional devices visible to the proxy.To learn more about how the platform verifies reachable devices, see the developer guide.
const devicesHandler = (request: IntentFlow.ReachableDevicesRequest): IntentFlow.ReachableDevicesResponse => { // Reference to the local proxy device const proxyDevice = request.inputs[0].payload.device.proxyDevice; // Query local proxy device for additional visible ids // ... const reachableDevices = [ // Each verificationId must match one of the otherDeviceIds // in the SYNC response { verificationId: "local-device-id-1" }, { verificationId: "local-device-id-2" }, ]; // Return a response const response: IntentFlow.ReachableDevicesResponse = { intent: Intents.REACHABLE_DEVICES, requestId: request.requestId, payload: { devices: reachableDevices, }, }; return response; };